Oarlock



Sqn. 15, 1925. I 1,554,100r

L. S. KCEREN OARLOCK Filed April 29, 1925 2 Sheets-Sheet l Patented Sept. 15, 1925.

LAWaENoEs. Kon-smv, or CHICAGO, ILLINOIS.

OARLOCK.

Application filed April 29, 1925.

T all whom t may concern.'

Be it lrnown that l, LAwRENcu S. Kousen,

a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Oarlocks, of which the 'following is a specification.

This invention appertains to a novel boat propelling' device and the primary object of the invention is to provide an improved oar of the bow facing' type embodying novel means for facilitating the ope ation of the oar under all conditions.

Another object of the invention is to provide an improved oar, which can be actuated by persons facing' the stern of the boat, in the same manne-r as the ordinary type of oars, said oar including inner and outer sections geared together, with novel means for supporting' said sections A further object of the invention is to provide an improved oar of the bow facing type having novel means, whereby the same can be associated with oar locks of the ordir nary character, novel means being also provided for facilitating the rocking of the oar so as to throw the blade into and out of the water.

A further object ofthe inv-ention is to provide an oar of the bow facing type, whichcan be used in the same manner as the ordi* nary oar, the oar embodying locking means for holding the gears of the oar section against swinging movement, when the oar is in a predetermined position relative to the oar lock.

A still further object of the invention is to pro-vide a novel means for associating the oar with the oar lock when the same is being used by a person facing the bow and novel means for associating the oar with the lock, when the oar` is in its reversed position for use in the ordinary manner.

A still further object of the invention is to provide an improved oar of the above character, which will be durable and efcient in use, one that will be simple and easy to manufacture and one which can be placed upon the market at a reasonable cost.

With these and other objects in view, the invention consists in the fnovel, construction, arrangement and formation of parts', as will be hereinafter more fully described, claimed y and illustrated in the accompanying draw# l5 in which drawings :1'

Serial N0. 26,765.

Figure 1 is a fragmentary top plan view of the improved oar.

Figure 2 is a fragmentary side elevation of the same illustrating the means for connecting the oar to the oar lock, when the oar is being used by a person facing' the bow,

Figure 3 is a fragmentary longitudinal section through the oar, showing the same in its reversed position for use as an ordinary oar.

Figure 4 is a transverse section through the improved oar taken on the line 4 4 of Figure 2.

Figure 5 is a. fragmentary perspective view illustrating one means of connecting one of the oar sections with the means for securing' said sections together,

Figure 6 is a similar view illustrating the modified form thereof,

Figure 7 is a similar view showing a still further modified form thereof,

Figure 8 is a similar view showing a still further modified form of the means for securing one of the oar sections to the operating pinions.

Referring' to the drawings in detail, wherein similar reference characters designate corT responding parts throughoutA the several views, the letter A generally indicates the novel oar, which comprises the oar sections 10 and 11. The section l0 can be considered as the section which carries the oar blade, while the section 11 can be considered as the section which carries the oar handle. The sections l0 and 11 can be made of wood or any other preferred material and are connected together at their meeting ends, in a novel manner, so as to permit the operation of the oar by a person facing the bow of the boat. The said sections are geared together by means ofpinions 12 and 13. The pinions 12 and 13 are disposed between facing' plates 14 and 16 and thel said plates are bolted together in any preferred way. The pinions 12 and 13 are rotatably mounted at their axial center on pivot pins 17 carried by the plates 14 and 16 on opposite sides of the transverse center thereof and these pins are in longitudinal alinement.

The pinions 12 and 13 are connected to their oar sections 10 and 11 `in any preferred way, and I have shown in Figures 1,-

and 3 of the drawings, the' l'oir'iir'ifsi are provided with radially extending sha1-iks? 18, which are adapted to be inserted in suitable slots formed in the inner ends of the said oar sections. The shanks 18 are'provided with stop flanges 19 for engaging the inner ends of the oar sections and suitable rivets 2O are passed through the oar sections and the shank.

In Figure 5 a modified form of means is shown for connecting the pinions with the oar sections and in this form each gear or pinion isrprovided with tapered plates 91 and 22 between whichisadapted'to receive the tapered inner end of the oar section. Rivets 23 being utilized for connecting the plates to said oar sections.

In Figure 6 of the drawings is shown a still further modified form of the invention, in which each of the gears is provided with a circular stop plat-e 24 carrying an axially disposed shank 25 which is fitted within a bore in the said oar sections. After the cylindrical shank has been placed in the bore of theA oar section, rivets 26 are utilized for connecting the same in place.

In ligure 7 a still further modified form of the invention i-s shown, in which each of the pinions carries a radially extending sleeve or ferrule 27 in which is adapted to fit the reduced terminal 28 of the oar section.

In Figure 8 of the drawings a still' further modified form of the means for connecting the pinions to the oar sections is shown and in this form, the outer end of the pinion is provided with a flat circular stop plate 50 provided with the rearwardly extending late'rally disposed arm 51 which is adapted to engage one side of the oar section. Suitable bolts or rivets 52 are extended through the oar section and through the arm 51.

By this construction, it is obvious that when the handle section 11 ofthe oar is operated by a person facing the bow of the boat, that the blade section 10 will be operated similar to the blade end of an ordinary oar.

The plates 14 and 16 are supported in a novel manner by a bracket 30, whereby the said oar can be readily associated with the ordinary type of oar lock and boat. The plate 16 at its transverse centerV is provided with upstanding lugs 29 against which is fitted the upper plate 14 and the screws 29 utilized for connecting the plates together are extended through the upper plate 14 into Said lugs 29.

The improved bracket 10 embodies end plates 31 and 32 and these plates are connected together by a transversely extending base plate 33 having the inverted V-shaped upper face 34 forming the knife edge 35 on which the oar is adapted to rock incident to the rowing operation. In order to further support the oar the plates 31 and 32 carry .inwardly directed pivots 35 which extend into the lugs 29.

The plate 31 has its lower face provided with a pair of spaced internally threadedl openingsy 36 into either one of which is adapte-d to be threaded a supporting` pin 3T. This pin 3'? is adapted to lit in the usual type of oar lock 38 carried by the boat side 39 as shown in Figure 2 ofthe drawings. 'Ihe pini-37 is removable, from one opening to the other in order that the device can be associatedy with boats having inboard or outboard oar locks. The other end plate 32 is provided with depending spaced lugs 4() and 41 for receiving the gunwale of the boat and the lug 41 is provided with an adjusting screw 42 for impinging against said gunwale to hold the .bracket in place.

When thel bracket is associated with the boat in the manner `shown in Figure 2, the oar is ready for operation' and the user can effectively actua-te the same by facing toward the bow.

However in some instances, it may be desirable to use the oar in tlie ordinaryT manner and to provide for this contingency each of the gears 1Q and 13 are providedwith openings 43 in which are' slidably mounted locking pins 44. The plate 14 is provided with sockets, 45 and when the car sections 10 and 11 are in longitudinal alinement the openings 43 are adapted to aline with the sockets 45. It is merely necessary to reverse the position of the oar, that is turn the same completely over, when it is desired to use the same in the ordinary manner and it can. be seen that the pins 45 will drop by gravity and into the sockets 45 and thus lock the gears or pinions to the plate 14 and hold the oar sections against swinging movement relative to one another. In order to permit the association of the oar with the oar lock when the oar is in this position, the plate 14 is provided with ears 46 to which is pivoted a pin 47 and this pin is adapted to lit in the ordinary oar lock.

From the `foregoing' description, it can be seen that I have provided a novel oar of the bow facing type, which can be readily associated with the boat without change thereto and which can be used, if desired, as an oar of the ordinary type.

Changes in details may be made without departing from the spirit or the scope of this invention, but:

What I claim as new is:

1. An oar o-f the character described comprising a pair of oar sections, intermeshing pinions carried by the facing ends of the sections, means rotatably supporting the pinions at their axial centers, clamping means for engaging a gunwale of the boat associated with said means and arranged on one side of the pinions, and a pin associated with said means and arranged on the other side of the pinions for fitting in the ordinary oar lock opening of a row boat.

2. An oar of the character described com* llO prising a pair of oar sections pinions carried by the facing ends of the sections, plates arranged in facing relation receiving the pinions therebetween, means pivotally connecting the pinions at their axial center to the plates in intermeshing engagement, a bracket, means pivotally connecting the plates to the bracket at their transverse center, an adjustable pin carried by one end of the bracket for fitting in the ordinary oar lock opening of a roT boat, and a clamp for gripping the gunivale of a boat carried by the opposite end of the bracket.

3. An oar for the purpose specified comprising a pair of oar sections, pinions rigidly carried by the inner ends of the oar sections disposed in meshing engagement, plates enn gaging the opposite faces of the pinions, means rigidly connecting the plates together, pivots carried by the plates extending through the axial centers of the pinions, a bracket, the bracket including end plates, and a connectingbridge plate provided with a knife edge for engaging the outer face of one of the first mentioned plates, pivot pins carried by the end plates of the bracket for rockably supporting the plates engaging the pinions, said pivots being arranged in transverse alinement With said knife edge, one of the end plates being provided With openings, means for detachably associating a pin with any one of said openings for engaging in the oar lock opening of a boat, and a clamp carried by the other end plate for engaging the gunwale, of a boat.

4. An oar for the purpose specied comprising a pair of oar sections gears rigidly carried by the inner ends of said oar sections arranged in n, meshing engagement, plates engaging the opposite faces of the gears, pivot pins extending through the plates and through the axial center of said gears, a bracket including end Walls, and a bridge Wall, means pivotally connecting the .end Walls to the plates, a pin carried by one end wall for engaging in the ordinary oar lock opening of a boat, a'clamp carried by the other endV Wall for clamping engagement With the gunvvale of the boat, and a pivoted pin carried by the plate remote from the bridge Wall of the bracket for engaging in the oar lock of a boat when the oar is in a reverse position, and means for locking the gears with said pla-te.

5. An oar for the purpose specified comprising a pair of plates arranged in spaced relation, lugscarried by one of the plates arranged' in transverse alinement, means securing the other plate to the lugs, a pair of oar sections, gears arranged between the plates rigidly secured to the oar sections, pivot pins carried by the plates extending axially through said gears, a bracket associated with the plates extending from one side thereof for engaging a boat, and a pin pivotally associated With the opposite face of the plate, for engaging the oar lock opening of the boat When the oar is in a reverse position, the plate carrying said pin having sockets formed in the inner face thereof, provided With openings adapted to aline With said sockets, when. the oar sections are arranged in longitudinal alinement, and gravity operated pins slidably mounted in said openings for engaging in said sockets when the pin is arranged in the oar lock openings and the oar sections are in alinement.

6. An oar of the character described comprising a pair of oar sections, intermeshing pinions carried by the facing ends of the sections, means rotatably supporting the pinions at their axial centers, clamping means for engaging a gunwale of a boat associated with said means and arranged on one side of the pinions, a pin associated With said means and arranged on the other side of the pinions for fitting in the ordinary oar lock opening of a row boat, and means for locking the pinions to said supporting means against movement, When the pin is disposed in said oar lock opening.

In testimony whereof I affix my signature.

LAWRENCE S. KOR'SEN. 

